Panasonic SH-FX65T Digital Transmitter, which is a component of a wireless home theater system. This transmitter is a card that is inserted into a compatible Panasonic main unit to enable wireless connectivity for rear surround speakers. The transmitter operates on a 2.4 GHz frequency. It is compatible with Panasonic home theater systems such as the SC-PT950 and SC-PT1050. Sold as pictured. Thanks for checking
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